Indicating Devices; Checking The Indicating Devices - Ducati Diavel Workshop Manual

Indicating devices

5 -Indicating devices

Checking the indicating devices

In the event of a fault, the internal connections of the device must be checked in all operating conditions. To do this, it is
necessary to disconnect the switch connector from the main wiring harness (Sect. 6 - 1, Routing of wiring on frame).
Then analyse the switch using an analogue or digital MULTIMETER (Sect. 6 - 11, Using a multimeter to check the electrical
systems).
Note
The same test may be carried out using the "DDS" tester (Sect. 6 - 11, Diagnostic instruments).
Checking the left-hand handlebar switch
To remove the left-hand handlebar switch, undo the fixing screws (1) and disconnect it from the electric system.
The colours mentioned in the following descriptions refer to the colours of the wires from the switch and not to the colours
of the wires of the main electric system.
HORN button
Connect the terminals of a multimeter to the Blue/White and Brown cables to check for electrical continuity, which must
be available when HORN is pressed (see Sect. 6 - 11, "Using a multimeter to check the electrical systems", related to
multimeter operation). When HORN button is pressed, resistance value taken by the multimeter should be close to zero
and, if available, a continuity beep should be heard. When the horn button is not pressed, the resistance value should be
infinity (there is no continuity as the electrical contacts inside the pushbutton are open) and no continuity beep should be
heard. If these conditions are not met, the device must be replaced.
Turn signal switch (Turn)
Connect the multimeter to the Grey and Brown cables arriving from the turn signal switch and check for electrical
continuity when operating the right turn indicator (see Sect. 6 - 11, "Using a multimeter to check the electrical systems",
related to operation of the multimeter). Repeat the above procedure for the right turn signal, but connect the multimeter
to the (Orange and Grey) wires.
Low and high beam headlights (DIMMER)
Test using the same procedure, applying the probes of the meter to the cables: (RED/BLUE AND LIGHT BLUE/YELLOW).
Control switch (MODE)
Connect the multimeter to the Brown and Blue/Yellow cables arriving from the function selector switch and check that
when operating the pushbutton in the (s) position there is electrical continuity (Sect. 6 - 11, "Using a multimeter to check
the electrical systems", related to operation of the multimeter). Repeat the same procedure, operating the push button in
the (t) position, connecting the multimeter to the Blue/Yellow and Orange cables.
Flasher (PASSING)
Check for continuity between the RED/BLUE AND BROWN cables.
Refit the LH switch tightening the screws (1) to a torque of 1.3 Nm ± 10% (Sect. 3 - 3, Frame torque settings).